This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.

This problem helps students practice adding three numbers whose sum are 20 or less.

This task/game allows students to practice addition while also thinking about ways to organize counting by randomly selecting two (two-digit) number cards and finding the sum. In addition, students are prompted with guiding questions to promote discourse. In closure, students use writing to reflect on their learning and thinking strategies during the game.

How many cookies did the Cookie Monster eat? This 3 Act Task by Graham Fletcher begins with a short portion of a video with Cookie Monster eating cookies. First students make observations and estimates to begin determining how many cookies the puppet ate. Students can then use pictures of the cookie label package, a full package of cookies, and the remaining cookies after the puppet ate some. Students are estimating, adding, and subtracting within 50 to determine the number of cookies the Cookie Monster ate.

Module 4 builds upon Module 2’s work with place value within 20, now focusing on the role of place value in the addition and subtraction of numbers to 40.  Students study, organize, and manipulate numbers within 40.  They compare quantities and begin using the symbols for greater than (>) and less than (<).  Addition and subtraction of tens is another focus of this module as is the use of familiar strategies to add two-digit and single-digit numbers within 40.  Near the end of the module, the focus moves to new ways to represent larger quantities and adding like place value units as students add two-digit numbers.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

In this final module of the Grade 1 curriculum, students bring together their learning from Module 1 through Module 5 to learn the most challenging Grade 1 standards and celebrate their progress. As the module opens, students grapple with comparative word problem types. Next, they extend their understanding of and skill with tens and ones to numbers to 100. Students also extend their learning from Module 4 to the numbers to 100 to add and subtract. At the start of the second half of Module 6, students are introduced to nickels and quarters, having already used pennies and dimes in the context of their work with numbers to 40 in Module 4. Students use their knowledge of tens and ones to explore decompositions of the values of coins. The module concludes with fun fluency festivities to celebrate a year's worth of learning.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

This intereactive Flash applet helps children learn grouping, tally marks, place value, addition, and subtraction. Students help the alien spaceship move cows into corrals by counting by 5s and 10s. They also can apply those grouping skills to practice adding and subtracting two-digit numbers with regrouping. Audio cues and prompts reinforce the user's actions and facilitate counting and the development of math language.

This resource First Grade Math Talks and was inspired by learning within The Power of Early Mathematics, 2024, a WISELearn Innovation Grant funded WI Department of Public Instruction learning series. powerofearlymath 

(Nota: Esta es una traducción de un recurso educativo abierto creado por el Departamento de Educación del Estado de Nueva York (NYSED) como parte del proyecto "EngageNY" en 2013. Aunque el recurso real fue traducido por personas, la siguiente descripción se tradujo del inglés original usando Google Translate para ayudar a los usuarios potenciales a decidir si se adapta a sus necesidades y puede contener errores gramaticales o lingüísticos. La descripción original en inglés también se proporciona a continuación.)

El módulo 4 se basa en el módulo 2 s trabajo con el valor del lugar dentro de 20, ahora centrándose en el papel del valor del lugar en la adición y resta de los números con 40. Los estudiantes estudian, organizan y manipulan números dentro de los 40. Comparan cantidades y comienzan a usar Los símbolos para mayores que (>) y menores de (<). La adición y la resta de TENS es otro foco de este módulo, al igual que el uso de estrategias familiares para agregar números de dos dígitos y de un solo dígito dentro de 40. Cerca del final del módulo, el enfoque se mueve a nuevas formas de representar grandes cantidades y agregar Al igual que las unidades de valor colocadoras, ya que los estudiantes agregan números de dos dígitos.

Encuentre el resto de los recursos matemáticos de Engageny en https://archive.org/details/engageny-mathematics.

English Description:
Module 4 builds upon Module 2’s work with place value within 20, now focusing on the role of place value in the addition and subtraction of numbers to 40.  Students study, organize, and manipulate numbers within 40.  They compare quantities and begin using the symbols for greater than (>) and less than (<).  Addition and subtraction of tens is another focus of this module as is the use of familiar strategies to add two-digit and single-digit numbers within 40.  Near the end of the module, the focus moves to new ways to represent larger quantities and adding like place value units as students add two-digit numbers.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

(Nota: Esta es una traducción de un recurso educativo abierto creado por el Departamento de Educación del Estado de Nueva York (NYSED) como parte del proyecto "EngageNY" en 2013. Aunque el recurso real fue traducido por personas, la siguiente descripción se tradujo del inglés original usando Google Translate para ayudar a los usuarios potenciales a decidir si se adapta a sus necesidades y puede contener errores gramaticales o lingüísticos. La descripción original en inglés también se proporciona a continuación.)

En este módulo final del plan de estudios de Grado 1, los estudiantes reúnen su aprendizaje del Módulo 1 al Módulo 5 para aprender los estándares de Grado 1 más desafiantes y celebrar su progreso. A medida que se abre el módulo, los estudiantes lidian con tipos de problemas de palabras comparativas. A continuación, extienden su comprensión y habilidad con decenas y números a 100. Los estudiantes también extienden su aprendizaje del módulo 4 a los números a 100 para sumar y restar. Al comienzo de la segunda mitad del módulo 6, los estudiantes se introducen en los monedas de montaña y cuartos, ya que ya han usado centavos y diez centavos en el contexto de su trabajo con los números a 40 en el módulo 4. Los estudiantes usan su conocimiento de decenas y otras para explorar las descomposiciones de los valores de las monedas. El módulo concluye con festividades divertidas de fluidez para celebrar un año de aprendizaje.

Encuentre el resto de los recursos matemáticos de Engageny en https://archive.org/details/engageny-mathematics.

English Description:
In this final module of the Grade 1 curriculum, students bring together their learning from Module 1 through Module 5 to learn the most challenging Grade 1 standards and celebrate their progress. As the module opens, students grapple with comparative word problem types. Next, they extend their understanding of and skill with tens and ones to numbers to 100. Students also extend their learning from Module 4 to the numbers to 100 to add and subtract. At the start of the second half of Module 6, students are introduced to nickels and quarters, having already used pennies and dimes in the context of their work with numbers to 40 in Module 4. Students use their knowledge of tens and ones to explore decompositions of the values of coins. The module concludes with fun fluency festivities to celebrate a year's worth of learning.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

In this challenging instructional task students relate addition and subtraction problems to money and to situations and goals related to saving money.

This unit is a Math Routine to use with a Literacy Unit about The Three Little Pigs. I included student work and projects. I created this slideshow to share with the students as we went through each routine. The routines revolve around the construction of houses. This was used in a first-grade classroom. The students persevered to solve the Lego brick problem although it may have been more difficult than first-grade standards.